var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var routes = require('./routes/index');
var users = require('./routes/users');

var config = require('./config.js');
var mongoose = require('mongoose');
var cors = require('cors');
var session = require('express-session');

var app = express();

/**
* 连接数据库
*/
mongoose.connect(config.dbPath, function onMongooseError (err) {
  if (err) throw err;
})

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', routes);
// app.use('/users', users);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  // next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    // res.render('error', {
    //   message: err.message,
    //   error: err
    // });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
  // res.status(err.status || 500);
  // res.render('error', {
  //   message: err.message,
  //   error: {}
  // });
});


module.exports = app;
